Portion of a child car seat



FIG. 1 is a perspective view of a portion of a child car seat embodying the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a left side view thereof; and,

FIG. 8 is an enlarged view of the portion denoted a—a′ and b—b′ in FIG. 2.

The portions of the drawings shown in broken lines are environmental structures or boundaries only, and form no part of the claimed design. 

The ornamental design for a portion of a child car seat, as shown and described. 